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Patent # Description
US-9,973,155 Apparatus and methods for tunable power amplifiers
A power amplifier is described. The power amplifier including at least a first amplifier stage, and at least a first tunable matching network. The first tunable...
US-9,973,154 Dual output RF LNA
RF receive circuitry, which includes a first output impedance matching circuit coupled to a first alpha output of a first alpha LNA, a second output impedance...
US-9,973,153 Broadband power amplifier systems and methods
Disclosed are systems, devices, and methodologies to reduce harmonics in a radio frequency output signal. A power amplifier system comprises a power amplifier...
US-9,973,152 Current-limiting in an amplifier system
One example includes an amplifier system. The system includes a gain stage configured to conduct a gain current in response to an input voltage. The system also...
US-9,973,151 Method for load measurement in switching amplifiers, corresponding device and amplifier
A method can be used to measure a load driven by a switching amplifier having a differential input, an LC output demodulator filter and a feedback network...
US-9,973,150 Doherty architecture for wideband power amplifier design
Embodiments of a Doherty amplifier device are provided, where the device includes a main amplifier that produces a first RF signal with a variable first output...
US-9,973,149 Source switched split LNA
A receiver front end capable of receiving and processing intraband non-contiguous carrier aggregate (CA) signals using multiple low noise amplifiers (LNAs) is...
US-9,973,148 Radio frequency system with switch to receive envelope
Aspects of this disclosure relate to a radio frequency system that includes an envelope generator configured to generate an envelope signal corresponding to an...
US-9,973,147 Envelope tracking power management circuit
An envelope tracking power management circuit is disclosed. An envelope tracking power management circuit includes a first envelope tracking amplifier(s) and a...
US-9,973,146 Amplifying circuit
An amplifying circuit includes a reference voltage generating circuit, a common-mode voltage conversion circuit, a common-mode negative feedback circuit, and an...
US-9,973,145 Amplifier dynamic bias adjustment for envelope tracking
An envelope tracking amplifier having stacked transistors is presented. The envelope tracking amplifier uses dynamic bias voltages at one or more gates of the...
US-9,973,144 Circuits and methods for increasing output frequency of an LC oscillator
Disclosed are circuits and methods for increasing an output frequency of an inductance-capacitance (LC) oscillator. In some embodiments, the LC oscillator can...
US-9,973,143 Solar panel roof modules
The invention comprises solar panel modules with a central air passage, which allows air to flow through the modules, potentially powering wind turbines. The...
US-9,973,142 Snow fence for a solar panel
An accessory for a solar panel assembly includes a bracket defining an elongated portion extending in a first direction and including a slot, a connector...
US-9,973,141 Solar system comprising self sustainable condensation, water collection, and cleaning subassemblies
A solar system is provided comprising a light receiving surface, a condensation subassembly, a water collection subassembly, and a cleaning subassembly. The...
US-9,973,140 Solar cell module
A solar cell module comprises a solar cell panel and a frame. A holding portion of a frame piece constituting the frame includes: a base extending upper than...
US-9,973,139 Apparatuses, systems, and methods for aerodynamic coupling of solar panel racking systems
Apparatuses, systems, and methods for coupling adjacent solar canopies into a unitized structure to reduce wind loads on and increase the structural integrity...
US-9,973,138 Brushless motor and washing machine provided with same
A brushless motor includes: a motor including a stator around which a winding wire is wound and a rotor holding a permanent magnet; a motor control...
US-9,973,137 Active front end power converter with boost mode derating to protect filter inductor
Methods and apparatus are presented for controlling a power converter to protect input filter inductors from overheating, in which an active front end (AFE)...
US-9,973,136 Method for controlling motor based on variable current controller gain and eco vehicle thereof
A method for controlling a motor based on a variable current controller gain may include a temperature function current applying mode in which when a torque...
US-9,973,135 Rotary electric machine control system and control method for rotary electric machine
A rotary electric machine control system includes a rotary electric machine, a rotation speed sensor, a temperature sensor, and circuitry. The rotary electric...
US-9,973,134 Electrical system with reverse current protection circuit
An electrical system includes a direct current (DC) voltage bus, a power supply providing a supply voltage to the DC voltage bus, an electric machine connected...
US-9,973,133 Motor control device and motor control method
A motor control device includes a detecting unit configured to detect rotation of a motor to be controlled and output a rotation detection value related to the...
US-9,973,132 Detection of an inter-turn winding fault in a motor
A motor control circuit includes a processor configured to calculate a plurality of motor impedances from measurements of an excitation voltage on a power bus...
US-9,973,130 Method for driving an AC motor by two-phase electric power and power generation method
A method for driving an AC motor is disclosed. The method comprises generating two phases of currents to drive the motor coils to generate one magnetic field...
US-9,973,129 HVAC components having a variable speed drive with optimized power factor correction
A power factor optimized variable speed drive unit for an electric motor of an HVAC device is disclosed. In an embodiment, the unit includes a ...
US-9,973,128 Control device
Periodic disturbance occurs in current etc. due to offset error and gain error of a current sensor used in a control device. A voltage command value is...
US-9,973,127 Control system for controlling the rotational speed of a drive motor
The rotational speed of at least one drive motor of a motor vehicle is controlled by an electronic control system, wherein the differential rotational speed...
US-9,973,126 Method for controlling operating speed and torque of electric motor
Systems and methods for controlling the operating speed and the torque of an electric motor using an operational model are described. An operational model for...
US-9,973,125 Operating a wind turbine being connected to a utility grid solely via an umbilical AC cable with a network...
A method for controlling the operation of a wind turbine is provided. The method includes receiving, by means of a power controller, an active power reference...
US-9,973,124 Dual coil generator
A vehicle electrical system comprises a generator which provides electrical power to an electrical load. The generator includes two field coils. A first switch...
US-9,973,123 System and method for controlling a generator
The present subject matter is directed to a method for controlling a generator of an electrical power system. The generator includes a generator stator...
US-9,973,122 Electric motor control device
A sensorless electric motor control device is provided that completes a phase detection of a rotor before an activation signal is received, so as to shorten a...
US-9,973,121 Magnetic sensor and an integrated circuit
The present teaching relates to a magnetic sensor residing in a housing. The magnetic sensor includes an input port and an output port, both extending from the...
US-9,973,120 Control of six step pulse width modulation with flux weakening
An electric machine assembly includes an electric machine having a stator configured to have a stator current and a controller configured to receive a torque...
US-9,973,119 Single phase motor drive circuit and a method of driving a single phase motor
A single phase motor drive circuit for driving a single phase motor, comprising: a timer unit for receiving a sensor signal indicative of an angular position of...
US-9,973,118 Motor drive circuit, method for detecting single phase DC motor rotation direction and method for starting motor
A motor drive circuit including a back electromotive force detecting module and a processing module is disclosed herein. The back electromotive force detecting...
US-9,973,117 System having a first electric motor and a second electric motor for driving a string
An exemplary system includes a first electric motor and a second electric motor, which are coupled mechanically to one another via a common string of the...
US-9,973,116 Control apparatus of injection molding machine
A power supply converter controller in an injection molding machine continuously operates a power supply converter in a continuous operation interval, operates...
US-9,973,115 Method for detecting the position of a wiper arm for a vehicle window wiping system
Method for detecting the position of a wiper arm (5) for a system (1) for wiping a vehicle window (3), comprising the steps consisting in: a) measuring or...
US-9,973,114 Method and apparatus for controlling motion in a counterbalancing system
A method and system for reducing rollback in a counterbalancing system as a holding brake is released is disclosed. A limited amount of movement of a drive...
US-9,973,113 Vehicle electronic power system with energy harvesting
Methods and apparatus are provided for a vehicle electronic power system. In one exemplary embodiment an energy harvesting device is configured to generate...
US-9,973,112 Energy harvester
An energy harvester includes a circuit for collecting an excess of electrical charges on a first connection terminal, wherein the circuit is equipped with a...
US-9,973,111 Graphene sheet and nanomechanical resonator
A nanomechanical resonator includes processing electronics configured to control an actuator to actively control a resonant frequency of a portion of a graphene...
US-9,973,110 Electrical architecture for converting DC voltage into AC voltage, and vice versa
An electrical architecture (1) for converting DC voltage into AC voltage, and vice versa, comprising: --a DC/AC voltage converter (2), comprising a plurality of...
US-9,973,109 Inverter circuit with current detection circuitry
An inverter circuit with a current detection circuitry includes a main bridge circuit connected between the pair of DC input nodes, the main bridge circuit...
US-9,973,108 Hybrid modulation strategy for multilevel inverters
Hybrid modulation strategies are provided for single phase and three phase inverter topologies. According to hybrid modulation strategy embodiments, one line...
US-9,973,107 AC/DC converter with three to single phase matrix converter, full-bridge AC/DC converter and HF transformer
A solution that intends to solve the problem of providing a single-stage bidirectional power conversion system (PCS) with a controllable power factor and the...
US-9,973,106 Wide range AC/DC converter circuit
An electric circuit for use with an AC power source includes a diode electrically connected to a line input from the AC power source, a transistor having a...
US-9,973,105 Half bridge for an active rectifier having an overvoltage protection
A half bridge for an active rectifier having an alternating-voltage connection, a positive direct-voltage connection, as well as a ground connection, a first...
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